./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/eca-rers2012/Problem14_label32.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label32.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88a2acfb67edf9e240ff83b999b4d577d317777b ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/eca-rers2012/Problem14_label32.c -s /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 88a2acfb67edf9e240ff83b999b4d577d317777b ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 08:14:57,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 08:14:57,967 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 08:14:57,994 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 08:14:57,994 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 08:14:57,996 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 08:14:57,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 08:14:58,014 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 08:14:58,016 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 08:14:58,017 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 08:14:58,018 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 08:14:58,019 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 08:14:58,019 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 08:14:58,020 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 08:14:58,021 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 08:14:58,022 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 08:14:58,023 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 08:14:58,024 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 08:14:58,025 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 08:14:58,027 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 08:14:58,028 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 08:14:58,029 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 08:14:58,030 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 08:14:58,031 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 08:14:58,034 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 08:14:58,034 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 08:14:58,034 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 08:14:58,035 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 08:14:58,035 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 08:14:58,036 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 08:14:58,036 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 08:14:58,037 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 08:14:58,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 08:14:58,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 08:14:58,039 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 08:14:58,039 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 08:14:58,039 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 08:14:58,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 08:14:58,040 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 08:14:58,040 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 08:14:58,041 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 08:14:58,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 08:14:58,065 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 08:14:58,065 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 08:14:58,066 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 08:14:58,066 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 08:14:58,066 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 08:14:58,066 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 08:14:58,066 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 08:14:58,066 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 08:14:58,066 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 08:14:58,066 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 08:14:58,066 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 08:14:58,067 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 08:14:58,067 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 08:14:58,067 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 08:14:58,067 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 08:14:58,067 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 08:14:58,068 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 08:14:58,068 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 08:14:58,068 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 08:14:58,068 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 08:14:58,068 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 08:14:58,068 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 08:14:58,068 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 08:14:58,068 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 08:14:58,068 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 08:14:58,068 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 08:14:58,069 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 08:14:58,069 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 08:14:58,069 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 08:14:58,069 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 08:14:58,069 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 08:14:58,069 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 08:14:58,069 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 08:14:58,069 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 08:14:58,069 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 08:14:58,070 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 08:14:58,070 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 08:14:58,070 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 08:14:58,070 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 08:14:58,070 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88a2acfb67edf9e240ff83b999b4d577d317777b [2020-12-09 08:14:58,243 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 08:14:58,264 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 08:14:58,266 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 08:14:58,267 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 08:14:58,268 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 08:14:58,269 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label32.c [2020-12-09 08:14:58,309 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/data/be42ca15c/04df77da053b449eb6b15a9eed7fcc82/FLAG353e495fc [2020-12-09 08:14:58,762 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 08:14:58,763 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/sv-benchmarks/c/eca-rers2012/Problem14_label32.c [2020-12-09 08:14:58,775 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/data/be42ca15c/04df77da053b449eb6b15a9eed7fcc82/FLAG353e495fc [2020-12-09 08:14:58,789 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/data/be42ca15c/04df77da053b449eb6b15a9eed7fcc82 [2020-12-09 08:14:58,792 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 08:14:58,793 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 08:14:58,795 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 08:14:58,795 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 08:14:58,797 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 08:14:58,798 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:14:58" (1/1) ... [2020-12-09 08:14:58,800 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3c51c1ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:58, skipping insertion in model container [2020-12-09 08:14:58,800 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:14:58" (1/1) ... [2020-12-09 08:14:58,805 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 08:14:58,842 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 08:14:58,981 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/sv-benchmarks/c/eca-rers2012/Problem14_label32.c[5661,5674] [2020-12-09 08:14:59,082 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:14:59,088 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 08:14:59,105 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/sv-benchmarks/c/eca-rers2012/Problem14_label32.c[5661,5674] [2020-12-09 08:14:59,160 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:14:59,171 INFO L208 MainTranslator]: Completed translation [2020-12-09 08:14:59,171 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:59 WrapperNode [2020-12-09 08:14:59,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 08:14:59,172 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 08:14:59,172 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 08:14:59,172 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 08:14:59,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:59" (1/1) ... [2020-12-09 08:14:59,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:59" (1/1) ... [2020-12-09 08:14:59,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 08:14:59,260 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 08:14:59,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 08:14:59,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 08:14:59,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:59" (1/1) ... [2020-12-09 08:14:59,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:59" (1/1) ... [2020-12-09 08:14:59,274 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:59" (1/1) ... [2020-12-09 08:14:59,274 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:59" (1/1) ... [2020-12-09 08:14:59,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:59" (1/1) ... [2020-12-09 08:14:59,313 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:59" (1/1) ... [2020-12-09 08:14:59,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:59" (1/1) ... [2020-12-09 08:14:59,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 08:14:59,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 08:14:59,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 08:14:59,331 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 08:14:59,332 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 08:14:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 08:14:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 08:14:59,388 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 08:14:59,388 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 08:15:11,893 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 08:15:11,893 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 08:15:11,895 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:15:11 BoogieIcfgContainer [2020-12-09 08:15:11,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 08:15:11,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 08:15:11,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 08:15:11,898 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 08:15:11,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:14:58" (1/3) ... [2020-12-09 08:15:11,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b38249d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:15:11, skipping insertion in model container [2020-12-09 08:15:11,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:14:59" (2/3) ... [2020-12-09 08:15:11,899 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b38249d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:15:11, skipping insertion in model container [2020-12-09 08:15:11,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:15:11" (3/3) ... [2020-12-09 08:15:11,900 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label32.c [2020-12-09 08:15:11,910 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 08:15:11,912 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 08:15:11,919 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 08:15:11,938 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 08:15:11,938 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 08:15:11,938 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 08:15:11,938 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 08:15:11,938 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 08:15:11,938 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 08:15:11,939 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 08:15:11,939 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 08:15:11,947 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2020-12-09 08:15:11,950 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-12-09 08:15:11,950 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:15:11,951 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-12-09 08:15:11,951 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:15:11,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:15:11,956 INFO L82 PathProgramCache]: Analyzing trace with hash 1036828366, now seen corresponding path program 1 times [2020-12-09 08:15:11,962 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 08:15:11,962 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808578685] [2020-12-09 08:15:11,962 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 08:15:12,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:15:12,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:15:12,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808578685] [2020-12-09 08:15:12,100 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:15:12,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 08:15:12,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1430493803] [2020-12-09 08:15:12,103 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:15:12,103 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 08:15:12,112 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:15:12,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:15:12,114 INFO L87 Difference]: Start difference. First operand 9 states. Second operand 3 states. [2020-12-09 08:15:12,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:15:12,171 INFO L93 Difference]: Finished difference Result 23 states and 29 transitions. [2020-12-09 08:15:12,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:15:12,172 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-12-09 08:15:12,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:15:12,177 INFO L225 Difference]: With dead ends: 23 [2020-12-09 08:15:12,178 INFO L226 Difference]: Without dead ends: 11 [2020-12-09 08:15:12,179 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:15:12,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-12-09 08:15:12,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 10. [2020-12-09 08:15:12,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-12-09 08:15:12,199 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2020-12-09 08:15:12,200 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 5 [2020-12-09 08:15:12,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:15:12,201 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2020-12-09 08:15:12,201 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:15:12,201 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2020-12-09 08:15:12,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-12-09 08:15:12,201 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:15:12,201 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2020-12-09 08:15:12,202 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 08:15:12,202 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:15:12,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:15:12,202 INFO L82 PathProgramCache]: Analyzing trace with hash 1017634318, now seen corresponding path program 1 times [2020-12-09 08:15:12,202 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 08:15:12,203 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901703127] [2020-12-09 08:15:12,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 08:15:12,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:15:12,542 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:15:12,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [901703127] [2020-12-09 08:15:12,558 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1309098791] [2020-12-09 08:15:12,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 08:15:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:15:12,645 INFO L263 TraceCheckSpWp]: Trace formula consists of 195 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 08:15:12,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:15:12,802 WARN L197 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 1339 DAG size of output: 83 [2020-12-09 08:15:12,851 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 08:15:12,853 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:12,854 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,855 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 08:15:12,856 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:12,858 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,858 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 08:15:12,861 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:12,862 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 08:15:12,867 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,867 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:12,869 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 08:15:12,872 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:12,873 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,878 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:12,880 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:12,880 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,881 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,883 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:12,885 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,888 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 08:15:12,890 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,893 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,894 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:12,895 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 08:15:12,898 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:12,899 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,904 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:12,905 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 08:15:12,907 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 08:15:12,908 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,909 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,909 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:12,911 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 08:15:12,914 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:12,916 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,919 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 08:15:12,920 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,921 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,924 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,927 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 08:15:12,928 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 08:15:12,929 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 08:15:12,930 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,933 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 08:15:12,937 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 08:15:12,938 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,939 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,942 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,945 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:12,946 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:12,947 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,947 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,948 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:12,950 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:12,950 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,951 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,952 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:12,953 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 08:15:12,956 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:12,957 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,960 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,961 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 08:15:12,962 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,965 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:12,966 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,970 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:12,971 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 08:15:12,972 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 08:15:12,973 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 08:15:12,974 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 08:15:12,974 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,978 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 08:15:12,979 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 08:15:12,982 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,983 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:12,984 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,987 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 08:15:12,987 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,991 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 08:15:12,992 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 08:15:12,993 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 08:15:12,994 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 08:15:12,994 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:12,995 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:12,996 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:12,998 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-12-09 08:15:13,000 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:13,003 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 08:15:13,003 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 08:15:13,004 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 08:15:13,007 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:13,010 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 08:15:13,010 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 5 disjuncts [2020-12-09 08:15:13,011 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 08:15:13,012 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 08:15:13,014 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 4 disjuncts [2020-12-09 08:15:13,018 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 6 disjuncts [2020-12-09 08:15:13,018 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 08:15:13,019 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 6 disjuncts [2020-12-09 08:15:13,022 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 5 disjuncts [2020-12-09 08:15:13,029 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 14, 4, 11, 4, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 08:15:13,029 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 2 disjuncts [2020-12-09 08:15:13,030 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 11, 4, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 08:15:13,030 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 08:15:13,031 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 08:15:13,031 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 08:15:13,032 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 08:15:13,032 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 08:15:13,033 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-12-09 08:15:13,033 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,034 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 4, 2, 4, 1] term [2020-12-09 08:15:13,034 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 08:15:13,035 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 5, 4, 5, 4, 2, 4, 1] term [2020-12-09 08:15:13,035 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 08:15:13,036 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 11, 4, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 08:15:13,036 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 08:15:13,037 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 8, 4, 5, 4, 2, 4, 1] term [2020-12-09 08:15:13,037 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 08:15:13,038 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 2 disjuncts [2020-12-09 08:15:13,039 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,042 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 08:15:13,043 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 08:15:13,043 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,044 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,047 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,049 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,051 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,053 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 08:15:13,054 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,056 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,058 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,059 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,062 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 08:15:13,063 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,065 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,069 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,070 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,073 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 08:15:13,074 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,076 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,079 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 08:15:13,080 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,081 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,084 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 08:15:13,084 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,086 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,089 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,090 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 08:15:13,091 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,092 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,092 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,095 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,096 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 08:15:13,097 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,097 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,099 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 08:15:13,100 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,100 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,102 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,104 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,107 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 08:15:13,107 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,108 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,110 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 08:15:13,110 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,111 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,112 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,114 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,116 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,117 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,117 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,120 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 08:15:13,121 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 08:15:13,121 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,121 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,124 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 08:15:13,124 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,126 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,128 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 2 disjuncts [2020-12-09 08:15:13,129 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,130 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 08:15:13,131 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,131 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,133 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,135 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,136 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 08:15:13,136 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,138 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,139 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,140 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,142 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 08:15:13,142 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,144 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,176 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,176 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,179 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 08:15:13,179 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,181 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,184 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,186 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,188 INFO L639 QuantifierPusher]: Distributing 11 conjuncts over 3 disjuncts [2020-12-09 08:15:13,189 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,189 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,192 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 08:15:13,192 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,193 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,195 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,197 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,200 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,201 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,202 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,206 INFO L639 QuantifierPusher]: Distributing 18 conjuncts over 2 disjuncts [2020-12-09 08:15:13,207 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-09 08:15:13,208 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,209 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,211 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 08:15:13,214 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 3 disjuncts [2020-12-09 08:15:13,214 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,216 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,217 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 08:15:13,218 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,220 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,221 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,225 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,226 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,229 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 2 disjuncts [2020-12-09 08:15:13,230 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-09 08:15:13,231 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,232 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,234 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 08:15:13,235 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 3 disjuncts [2020-12-09 08:15:13,236 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,237 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,238 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 08:15:13,239 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,240 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,241 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,243 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,244 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,246 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,248 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,249 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 2 disjuncts [2020-12-09 08:15:13,249 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,250 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 08:15:13,252 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,253 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 08:15:13,254 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,256 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,256 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,259 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 08:15:13,259 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,261 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,263 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 08:15:13,264 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,266 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 08:15:13,267 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,269 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,270 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,272 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,273 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,274 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,275 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,276 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,277 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,278 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 08:15:13,279 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,280 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 08:15:13,282 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,283 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,284 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-12-09 08:15:13,286 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 08:15:13,286 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,288 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,290 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,290 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,292 INFO L639 QuantifierPusher]: Distributing 14 conjuncts over 3 disjuncts [2020-12-09 08:15:13,293 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 3 disjuncts [2020-12-09 08:15:13,294 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,295 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,296 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,298 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 3 disjuncts [2020-12-09 08:15:13,298 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,299 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,300 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 08:15:13,301 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,303 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,303 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,305 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,306 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,307 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,309 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,309 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,312 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 08:15:13,312 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,314 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,314 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,317 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,319 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,320 INFO L639 QuantifierPusher]: Distributing 12 conjuncts over 2 disjuncts [2020-12-09 08:15:13,321 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,322 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 08:15:13,324 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,326 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 08:15:13,327 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,329 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,330 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,333 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 08:15:13,333 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,336 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,338 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 2 disjuncts [2020-12-09 08:15:13,339 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,342 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 08:15:13,342 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,345 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,348 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,350 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,351 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,352 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,353 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,354 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,355 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,356 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 2 disjuncts [2020-12-09 08:15:13,356 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,358 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 08:15:13,360 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 08:15:13,361 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,362 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 08:15:13,364 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,365 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,367 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 2 disjuncts [2020-12-09 08:15:13,367 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,368 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 08:15:13,370 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,371 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,372 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 2 disjuncts [2020-12-09 08:15:13,374 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 08:15:13,374 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,376 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:15:13,378 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,378 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,380 INFO L639 QuantifierPusher]: Distributing 10 conjuncts over 2 disjuncts [2020-12-09 08:15:13,381 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,382 INFO L639 QuantifierPusher]: Distributing 8 conjuncts over 3 disjuncts [2020-12-09 08:15:13,382 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,384 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,385 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,386 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,387 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,388 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,388 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,390 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 08:15:13,390 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,391 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,391 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,393 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,394 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,396 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,397 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,397 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,399 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,399 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,401 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,402 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,403 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,404 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,405 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,406 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 3 disjuncts [2020-12-09 08:15:13,407 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,407 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,409 INFO L639 QuantifierPusher]: Distributing 7 conjuncts over 3 disjuncts [2020-12-09 08:15:13,409 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,410 INFO L639 QuantifierPusher]: Distributing 5 conjuncts over 3 disjuncts [2020-12-09 08:15:13,411 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,412 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,413 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,415 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,416 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:15:13,416 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:15:13,427 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:15:13,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:15:13,795 WARN L197 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 2658 DAG size of output: 2498 [2020-12-09 08:15:13,816 WARN L332 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: BigInteger out of long range [2020-12-09 08:15:13,816 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [2106407455] [2020-12-09 08:15:13,832 INFO L159 IcfgInterpreter]: Started Sifa with 7 locations of interest [2020-12-09 08:15:13,832 INFO L166 IcfgInterpreter]: Building call graph [2020-12-09 08:15:13,835 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2020-12-09 08:15:13,839 INFO L176 IcfgInterpreter]: Starting interpretation [2020-12-09 08:15:13,839 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2020-12-09 08:15:13,957 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 50 [2020-12-09 08:15:14,945 WARN L138 XnfTransformerHelper]: expecting exponential blowup for input size 50 [2020-12-09 08:15:16,400 WARN L197 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 2472 DAG size of output: 2331 [2020-12-09 08:15:32,065 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-12-09 08:15:32,067 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.AssertionError: variable got div captured at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:426) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$IDerHelper.findBestReplacementSbr(DualJunctionDer.java:305) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$IDerHelper.tryToEliminateSbr(DualJunctionDer.java:319) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:223) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:190) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminateOne(DualJunctionDer.java:174) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryExhaustivelyToEliminate(DualJunctionDer.java:141) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer.tryToEliminate(DualJunctionDer.java:119) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToEliminateOne(QuantifierPusher.java:776) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyNewEliminationTechniquesExhaustively(QuantifierPusher.java:739) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.applyDualJunctionEliminationTechniques(QuantifierPusher.java:656) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:358) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.doit(QuantifierPusher.java:523) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:378) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:431) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.doit(QuantifierPusher.java:523) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:378) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.convert(QuantifierPusher.java:217) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.cacheConvert(TermTransformer.java:131) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.access$0(TermTransformer.java:127) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer$Convert.walk(TermTransformer.java:79) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:115) at de.uni_freiburg.informatik.ultimate.logic.NonRecursive.run(NonRecursive.java:106) at de.uni_freiburg.informatik.ultimate.logic.TermTransformer.transform(TermTransformer.java:272) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:151) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.linearterms.QuantifierPusher.eliminate(QuantifierPusher.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.elimPushPull(PartialQuantifierElimination.java:202) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.PartialQuantifierElimination.quantifier(PartialQuantifierElimination.java:139) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.newQuantifier(SymbolicTools.java:279) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools$EliminatingTermDomainOperationProvider.projectExistentially(SymbolicTools.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.TermDomainOperationProvider.projectExistentially(TermDomainOperationProvider.java:1) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateTransformer.strongestPostcondition(PredicateTransformer.java:131) at de.uni_freiburg.informatik.ultimate.lib.sifa.SymbolicTools.post(SymbolicTools.java:116) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretInternal(DagInterpreter.java:227) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTransAndStoreLoiPred(DagInterpreter.java:209) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretTrans(DagInterpreter.java:187) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:165) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpretForSingleMarker(DagInterpreter.java:97) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarizeInternal(FixpointLoopSummarizer.java:118) at java.base/java.util.HashMap.computeIfAbsent(HashMap.java:1133) at de.uni_freiburg.informatik.ultimate.lib.sifa.summarizers.FixpointLoopSummarizer.summarize(FixpointLoopSummarizer.java:94) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretLoop(DagInterpreter.java:177) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.ipretNode(DagInterpreter.java:168) at de.uni_freiburg.informatik.ultimate.lib.sifa.DagInterpreter.interpret(DagInterpreter.java:123) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpretLoisInProcedure(IcfgInterpreter.java:136) at de.uni_freiburg.informatik.ultimate.lib.sifa.IcfgInterpreter.interpret(IcfgInterpreter.java:127) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:102) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:289) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:189) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:179) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:84) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:74) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:511) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:438) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:372) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopResult.iterate(CegarLoopResult.java:138) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterateNew(TraceAbstractionStarter.java:345) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:198) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2020-12-09 08:15:32,076 INFO L168 Benchmark]: Toolchain (without parser) took 33280.98 ms. Allocated memory was 123.7 MB in the beginning and 861.9 MB in the end (delta: 738.2 MB). Free memory was 83.9 MB in the beginning and 262.7 MB in the end (delta: -178.7 MB). Peak memory consumption was 663.8 MB. Max. memory is 16.1 GB. [2020-12-09 08:15:32,077 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 123.7 MB. Free memory was 102.2 MB in the beginning and 102.1 MB in the end (delta: 103.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 08:15:32,077 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.40 ms. Allocated memory is still 123.7 MB. Free memory was 83.7 MB in the beginning and 76.6 MB in the end (delta: 7.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-12-09 08:15:32,078 INFO L168 Benchmark]: Boogie Procedure Inliner took 87.86 ms. Allocated memory is still 123.7 MB. Free memory was 76.6 MB in the beginning and 67.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 08:15:32,078 INFO L168 Benchmark]: Boogie Preprocessor took 69.71 ms. Allocated memory is still 123.7 MB. Free memory was 67.1 MB in the beginning and 60.8 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 08:15:32,079 INFO L168 Benchmark]: RCFGBuilder took 12564.24 ms. Allocated memory was 123.7 MB in the beginning and 314.6 MB in the end (delta: 190.8 MB). Free memory was 60.8 MB in the beginning and 127.6 MB in the end (delta: -66.9 MB). Peak memory consumption was 200.6 MB. Max. memory is 16.1 GB. [2020-12-09 08:15:32,079 INFO L168 Benchmark]: TraceAbstraction took 20177.56 ms. Allocated memory was 314.6 MB in the beginning and 861.9 MB in the end (delta: 547.4 MB). Free memory was 127.6 MB in the beginning and 262.7 MB in the end (delta: -135.0 MB). Peak memory consumption was 517.3 MB. Max. memory is 16.1 GB. [2020-12-09 08:15:32,082 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 123.7 MB. Free memory was 102.2 MB in the beginning and 102.1 MB in the end (delta: 103.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 376.40 ms. Allocated memory is still 123.7 MB. Free memory was 83.7 MB in the beginning and 76.6 MB in the end (delta: 7.1 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 87.86 ms. Allocated memory is still 123.7 MB. Free memory was 76.6 MB in the beginning and 67.1 MB in the end (delta: 9.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 69.71 ms. Allocated memory is still 123.7 MB. Free memory was 67.1 MB in the beginning and 60.8 MB in the end (delta: 6.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 12564.24 ms. Allocated memory was 123.7 MB in the beginning and 314.6 MB in the end (delta: 190.8 MB). Free memory was 60.8 MB in the beginning and 127.6 MB in the end (delta: -66.9 MB). Peak memory consumption was 200.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 20177.56 ms. Allocated memory was 314.6 MB in the beginning and 861.9 MB in the end (delta: 547.4 MB). Free memory was 127.6 MB in the beginning and 262.7 MB in the end (delta: -135.0 MB). Peak memory consumption was 517.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: AssertionError: variable got div captured de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: AssertionError: variable got div captured: de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.pqe.DualJunctionDer$DerHelperMcsbr.solveForSubject(DualJunctionDer.java:426) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.0-7b2dab5 [2020-12-09 08:15:33,665 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 08:15:33,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 08:15:33,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 08:15:33,694 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 08:15:33,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 08:15:33,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 08:15:33,700 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 08:15:33,702 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 08:15:33,703 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 08:15:33,704 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 08:15:33,729 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 08:15:33,729 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 08:15:33,731 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 08:15:33,732 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 08:15:33,733 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 08:15:33,734 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 08:15:33,736 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 08:15:33,738 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 08:15:33,740 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 08:15:33,742 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 08:15:33,744 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 08:15:33,745 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 08:15:33,746 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 08:15:33,750 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 08:15:33,750 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 08:15:33,750 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 08:15:33,752 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 08:15:33,752 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 08:15:33,753 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 08:15:33,754 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 08:15:33,755 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 08:15:33,756 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 08:15:33,756 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 08:15:33,758 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 08:15:33,758 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 08:15:33,759 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 08:15:33,759 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 08:15:33,759 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 08:15:33,760 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 08:15:33,761 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 08:15:33,762 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2020-12-09 08:15:33,785 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 08:15:33,785 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 08:15:33,786 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 08:15:33,786 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 08:15:33,786 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 08:15:33,786 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 08:15:33,786 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 08:15:33,786 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 08:15:33,787 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 08:15:33,787 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 08:15:33,787 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 08:15:33,787 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 08:15:33,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 08:15:33,788 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 08:15:33,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 08:15:33,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 08:15:33,788 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 08:15:33,788 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-12-09 08:15:33,788 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-12-09 08:15:33,788 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 08:15:33,788 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 08:15:33,789 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 08:15:33,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 08:15:33,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 08:15:33,789 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-09 08:15:33,789 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 08:15:33,789 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 08:15:33,789 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 08:15:33,789 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 08:15:33,790 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 08:15:33,790 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-12-09 08:15:33,790 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2020-12-09 08:15:33,790 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 08:15:33,790 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 08:15:33,790 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 08:15:33,790 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 88a2acfb67edf9e240ff83b999b4d577d317777b [2020-12-09 08:15:34,024 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 08:15:34,038 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 08:15:34,040 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 08:15:34,041 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 08:15:34,041 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 08:15:34,042 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/../../sv-benchmarks/c/eca-rers2012/Problem14_label32.c [2020-12-09 08:15:34,082 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/data/0b82168b5/faf09efb48b64ae4b0a81cdaac1d6bd5/FLAG311b9ed46 [2020-12-09 08:15:34,546 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 08:15:34,547 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/sv-benchmarks/c/eca-rers2012/Problem14_label32.c [2020-12-09 08:15:34,559 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/data/0b82168b5/faf09efb48b64ae4b0a81cdaac1d6bd5/FLAG311b9ed46 [2020-12-09 08:15:34,572 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/data/0b82168b5/faf09efb48b64ae4b0a81cdaac1d6bd5 [2020-12-09 08:15:34,574 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 08:15:34,575 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 08:15:34,577 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 08:15:34,577 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 08:15:34,580 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 08:15:34,581 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:15:34" (1/1) ... [2020-12-09 08:15:34,583 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@17dd1178 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:15:34, skipping insertion in model container [2020-12-09 08:15:34,583 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 08:15:34" (1/1) ... [2020-12-09 08:15:34,589 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 08:15:34,623 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 08:15:34,758 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/sv-benchmarks/c/eca-rers2012/Problem14_label32.c[5661,5674] [2020-12-09 08:15:34,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:15:34,940 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 08:15:34,967 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/sv-benchmarks/c/eca-rers2012/Problem14_label32.c[5661,5674] [2020-12-09 08:15:35,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 08:15:35,074 INFO L208 MainTranslator]: Completed translation [2020-12-09 08:15:35,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:15:35 WrapperNode [2020-12-09 08:15:35,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 08:15:35,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 08:15:35,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 08:15:35,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 08:15:35,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:15:35" (1/1) ... [2020-12-09 08:15:35,107 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:15:35" (1/1) ... [2020-12-09 08:15:35,160 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 08:15:35,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 08:15:35,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 08:15:35,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 08:15:35,169 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:15:35" (1/1) ... [2020-12-09 08:15:35,169 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:15:35" (1/1) ... [2020-12-09 08:15:35,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:15:35" (1/1) ... [2020-12-09 08:15:35,175 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:15:35" (1/1) ... [2020-12-09 08:15:35,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:15:35" (1/1) ... [2020-12-09 08:15:35,209 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:15:35" (1/1) ... [2020-12-09 08:15:35,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:15:35" (1/1) ... [2020-12-09 08:15:35,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 08:15:35,228 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 08:15:35,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 08:15:35,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 08:15:35,229 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:15:35" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 08:15:35,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2020-12-09 08:15:35,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 08:15:35,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 08:15:35,283 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 08:15:37,787 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 08:15:37,788 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2020-12-09 08:15:37,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:15:37 BoogieIcfgContainer [2020-12-09 08:15:37,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 08:15:37,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 08:15:37,791 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 08:15:37,793 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 08:15:37,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 08:15:34" (1/3) ... [2020-12-09 08:15:37,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0b4269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:15:37, skipping insertion in model container [2020-12-09 08:15:37,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 08:15:35" (2/3) ... [2020-12-09 08:15:37,794 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3a0b4269 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 08:15:37, skipping insertion in model container [2020-12-09 08:15:37,794 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:15:37" (3/3) ... [2020-12-09 08:15:37,795 INFO L111 eAbstractionObserver]: Analyzing ICFG Problem14_label32.c [2020-12-09 08:15:37,804 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 08:15:37,807 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 08:15:37,814 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 08:15:37,831 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 08:15:37,831 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 08:15:37,832 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 08:15:37,832 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 08:15:37,832 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 08:15:37,832 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 08:15:37,832 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 08:15:37,832 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 08:15:37,845 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states. [2020-12-09 08:15:37,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2020-12-09 08:15:37,850 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:15:37,851 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:15:37,851 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:15:37,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:15:37,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1246856209, now seen corresponding path program 1 times [2020-12-09 08:15:37,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:15:37,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [76244207] [2020-12-09 08:15:37,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-12-09 08:15:37,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:15:37,922 INFO L263 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 08:15:37,926 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:15:38,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:15:38,010 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:15:38,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [76244207] [2020-12-09 08:15:38,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:15:38,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 08:15:38,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188283570] [2020-12-09 08:15:38,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:15:38,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:15:38,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:15:38,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:15:38,025 INFO L87 Difference]: Start difference. First operand 245 states. Second operand 3 states. [2020-12-09 08:15:41,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:15:41,178 INFO L93 Difference]: Finished difference Result 669 states and 1200 transitions. [2020-12-09 08:15:41,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:15:41,179 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 55 [2020-12-09 08:15:41,180 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:15:41,189 INFO L225 Difference]: With dead ends: 669 [2020-12-09 08:15:41,189 INFO L226 Difference]: Without dead ends: 360 [2020-12-09 08:15:41,192 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:15:41,204 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2020-12-09 08:15:41,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2020-12-09 08:15:41,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2020-12-09 08:15:41,233 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 522 transitions. [2020-12-09 08:15:41,234 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 522 transitions. Word has length 55 [2020-12-09 08:15:41,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:15:41,234 INFO L481 AbstractCegarLoop]: Abstraction has 360 states and 522 transitions. [2020-12-09 08:15:41,234 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:15:41,234 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 522 transitions. [2020-12-09 08:15:41,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 122 [2020-12-09 08:15:41,238 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:15:41,239 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:15:41,439 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-12-09 08:15:41,440 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:15:41,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:15:41,442 INFO L82 PathProgramCache]: Analyzing trace with hash 1764919169, now seen corresponding path program 1 times [2020-12-09 08:15:41,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:15:41,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1584709813] [2020-12-09 08:15:41,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-12-09 08:15:41,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:15:41,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 08:15:41,508 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:15:41,596 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:15:41,596 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:15:41,596 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1584709813] [2020-12-09 08:15:41,597 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:15:41,597 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 08:15:41,597 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1950413463] [2020-12-09 08:15:41,598 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:15:41,598 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:15:41,599 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:15:41,599 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:15:41,599 INFO L87 Difference]: Start difference. First operand 360 states and 522 transitions. Second operand 3 states. [2020-12-09 08:15:44,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:15:44,658 INFO L93 Difference]: Finished difference Result 1074 states and 1561 transitions. [2020-12-09 08:15:44,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:15:44,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 121 [2020-12-09 08:15:44,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:15:44,662 INFO L225 Difference]: With dead ends: 1074 [2020-12-09 08:15:44,662 INFO L226 Difference]: Without dead ends: 716 [2020-12-09 08:15:44,664 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 119 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:15:44,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2020-12-09 08:15:44,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2020-12-09 08:15:44,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 716 states. [2020-12-09 08:15:44,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 962 transitions. [2020-12-09 08:15:44,690 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 962 transitions. Word has length 121 [2020-12-09 08:15:44,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:15:44,691 INFO L481 AbstractCegarLoop]: Abstraction has 716 states and 962 transitions. [2020-12-09 08:15:44,691 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:15:44,691 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 962 transitions. [2020-12-09 08:15:44,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2020-12-09 08:15:44,694 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:15:44,694 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:15:44,895 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-12-09 08:15:44,896 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:15:44,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:15:44,898 INFO L82 PathProgramCache]: Analyzing trace with hash 2077718982, now seen corresponding path program 1 times [2020-12-09 08:15:44,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:15:44,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [848025843] [2020-12-09 08:15:44,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-12-09 08:15:44,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:15:44,989 INFO L263 TraceCheckSpWp]: Trace formula consists of 170 conjuncts, 2 conjunts are in the unsatisfiable core [2020-12-09 08:15:44,991 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:15:45,084 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 52 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 08:15:45,084 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:15:45,085 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [848025843] [2020-12-09 08:15:45,085 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:15:45,085 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 08:15:45,085 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [668983366] [2020-12-09 08:15:45,086 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:15:45,086 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:15:45,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:15:45,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:15:45,087 INFO L87 Difference]: Start difference. First operand 716 states and 962 transitions. Second operand 3 states. [2020-12-09 08:15:47,879 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:15:47,879 INFO L93 Difference]: Finished difference Result 1964 states and 2655 transitions. [2020-12-09 08:15:47,880 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:15:47,880 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 123 [2020-12-09 08:15:47,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:15:47,887 INFO L225 Difference]: With dead ends: 1964 [2020-12-09 08:15:47,887 INFO L226 Difference]: Without dead ends: 1250 [2020-12-09 08:15:47,889 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 122 GetRequests, 121 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:15:47,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2020-12-09 08:15:47,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 1250. [2020-12-09 08:15:47,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1250 states. [2020-12-09 08:15:47,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1250 states to 1250 states and 1556 transitions. [2020-12-09 08:15:47,919 INFO L78 Accepts]: Start accepts. Automaton has 1250 states and 1556 transitions. Word has length 123 [2020-12-09 08:15:47,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:15:47,920 INFO L481 AbstractCegarLoop]: Abstraction has 1250 states and 1556 transitions. [2020-12-09 08:15:47,920 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:15:47,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1250 states and 1556 transitions. [2020-12-09 08:15:47,925 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-12-09 08:15:47,925 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:15:47,925 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:15:48,126 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-12-09 08:15:48,127 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:15:48,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:15:48,129 INFO L82 PathProgramCache]: Analyzing trace with hash -900097741, now seen corresponding path program 1 times [2020-12-09 08:15:48,132 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:15:48,133 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [667048498] [2020-12-09 08:15:48,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-12-09 08:15:48,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:15:48,264 INFO L263 TraceCheckSpWp]: Trace formula consists of 257 conjuncts, 5 conjunts are in the unsatisfiable core [2020-12-09 08:15:48,267 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:15:48,484 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 149 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2020-12-09 08:15:48,484 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:15:48,484 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [667048498] [2020-12-09 08:15:48,484 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:15:48,484 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-12-09 08:15:48,484 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253218920] [2020-12-09 08:15:48,485 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 08:15:48,485 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:15:48,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 08:15:48,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 08:15:48,486 INFO L87 Difference]: Start difference. First operand 1250 states and 1556 transitions. Second operand 4 states. [2020-12-09 08:15:50,848 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:15:50,849 INFO L93 Difference]: Finished difference Result 2171 states and 2741 transitions. [2020-12-09 08:15:50,849 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 08:15:50,849 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 204 [2020-12-09 08:15:50,849 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:15:50,853 INFO L225 Difference]: With dead ends: 2171 [2020-12-09 08:15:50,854 INFO L226 Difference]: Without dead ends: 1072 [2020-12-09 08:15:50,855 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 203 GetRequests, 201 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-12-09 08:15:50,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-12-09 08:15:50,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-12-09 08:15:50,868 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-09 08:15:50,870 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1327 transitions. [2020-12-09 08:15:50,870 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1327 transitions. Word has length 204 [2020-12-09 08:15:50,871 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:15:50,871 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1327 transitions. [2020-12-09 08:15:50,871 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 08:15:50,871 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1327 transitions. [2020-12-09 08:15:50,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2020-12-09 08:15:50,877 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:15:50,877 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:15:51,077 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-12-09 08:15:51,078 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:15:51,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:15:51,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1803774034, now seen corresponding path program 1 times [2020-12-09 08:15:51,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:15:51,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [474154015] [2020-12-09 08:15:51,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-12-09 08:15:51,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:15:51,188 INFO L263 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 08:15:51,191 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:15:51,521 INFO L134 CoverageAnalysis]: Checked inductivity of 173 backedges. 105 proven. 0 refuted. 0 times theorem prover too weak. 68 trivial. 0 not checked. [2020-12-09 08:15:51,521 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:15:51,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [474154015] [2020-12-09 08:15:51,522 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 08:15:51,522 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-12-09 08:15:51,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1005564769] [2020-12-09 08:15:51,522 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:15:51,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:15:51,523 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:15:51,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:15:51,523 INFO L87 Difference]: Start difference. First operand 1072 states and 1327 transitions. Second operand 3 states. [2020-12-09 08:15:53,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:15:53,778 INFO L93 Difference]: Finished difference Result 1786 states and 2287 transitions. [2020-12-09 08:15:53,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:15:53,779 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 230 [2020-12-09 08:15:53,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:15:53,783 INFO L225 Difference]: With dead ends: 1786 [2020-12-09 08:15:53,783 INFO L226 Difference]: Without dead ends: 1072 [2020-12-09 08:15:53,784 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 229 GetRequests, 228 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-12-09 08:15:53,785 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2020-12-09 08:15:53,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2020-12-09 08:15:53,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1072 states. [2020-12-09 08:15:53,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1321 transitions. [2020-12-09 08:15:53,799 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1321 transitions. Word has length 230 [2020-12-09 08:15:53,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:15:53,800 INFO L481 AbstractCegarLoop]: Abstraction has 1072 states and 1321 transitions. [2020-12-09 08:15:53,800 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:15:53,800 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1321 transitions. [2020-12-09 08:15:53,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 335 [2020-12-09 08:15:53,805 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:15:53,806 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:15:54,006 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-12-09 08:15:54,007 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:15:54,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:15:54,008 INFO L82 PathProgramCache]: Analyzing trace with hash -68738399, now seen corresponding path program 1 times [2020-12-09 08:15:54,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:15:54,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [511684169] [2020-12-09 08:15:54,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-12-09 08:15:54,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:15:54,214 INFO L263 TraceCheckSpWp]: Trace formula consists of 398 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 08:15:54,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:15:54,507 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 158 proven. 135 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 08:15:54,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:15:55,361 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 293 proven. 0 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2020-12-09 08:15:55,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [511684169] [2020-12-09 08:15:55,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 08:15:55,362 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 08:15:55,362 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411735023] [2020-12-09 08:15:55,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:15:55,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:15:55,363 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:15:55,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 08:15:55,363 INFO L87 Difference]: Start difference. First operand 1072 states and 1321 transitions. Second operand 3 states. [2020-12-09 08:16:01,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:16:01,937 INFO L93 Difference]: Finished difference Result 2142 states and 2812 transitions. [2020-12-09 08:16:01,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:16:01,938 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 334 [2020-12-09 08:16:01,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:16:01,944 INFO L225 Difference]: With dead ends: 2142 [2020-12-09 08:16:01,944 INFO L226 Difference]: Without dead ends: 1428 [2020-12-09 08:16:01,945 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 666 GetRequests, 662 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-12-09 08:16:01,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2020-12-09 08:16:01,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1428. [2020-12-09 08:16:01,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1428 states. [2020-12-09 08:16:01,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1767 transitions. [2020-12-09 08:16:01,974 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1767 transitions. Word has length 334 [2020-12-09 08:16:01,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:16:01,975 INFO L481 AbstractCegarLoop]: Abstraction has 1428 states and 1767 transitions. [2020-12-09 08:16:01,975 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:16:01,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1767 transitions. [2020-12-09 08:16:01,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 446 [2020-12-09 08:16:01,984 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:16:01,984 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:16:02,185 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-12-09 08:16:02,186 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:16:02,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:16:02,188 INFO L82 PathProgramCache]: Analyzing trace with hash -103894621, now seen corresponding path program 1 times [2020-12-09 08:16:02,193 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:16:02,194 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [964742049] [2020-12-09 08:16:02,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-12-09 08:16:02,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:16:02,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 518 conjuncts, 3 conjunts are in the unsatisfiable core [2020-12-09 08:16:02,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:16:02,787 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 435 proven. 159 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-12-09 08:16:02,787 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:16:03,657 INFO L134 CoverageAnalysis]: Checked inductivity of 751 backedges. 594 proven. 0 refuted. 0 times theorem prover too weak. 157 trivial. 0 not checked. [2020-12-09 08:16:03,657 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [964742049] [2020-12-09 08:16:03,657 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2020-12-09 08:16:03,658 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 5 [2020-12-09 08:16:03,658 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [720650134] [2020-12-09 08:16:03,658 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-12-09 08:16:03,658 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:16:03,659 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-12-09 08:16:03,659 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 08:16:03,659 INFO L87 Difference]: Start difference. First operand 1428 states and 1767 transitions. Second operand 3 states. [2020-12-09 08:16:09,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:16:09,578 INFO L93 Difference]: Finished difference Result 3210 states and 4150 transitions. [2020-12-09 08:16:09,578 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-12-09 08:16:09,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 445 [2020-12-09 08:16:09,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:16:09,585 INFO L225 Difference]: With dead ends: 3210 [2020-12-09 08:16:09,585 INFO L226 Difference]: Without dead ends: 2140 [2020-12-09 08:16:09,587 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 888 GetRequests, 884 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-12-09 08:16:09,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2140 states. [2020-12-09 08:16:09,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2140 to 2140. [2020-12-09 08:16:09,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2140 states. [2020-12-09 08:16:09,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2140 states to 2140 states and 2666 transitions. [2020-12-09 08:16:09,615 INFO L78 Accepts]: Start accepts. Automaton has 2140 states and 2666 transitions. Word has length 445 [2020-12-09 08:16:09,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:16:09,615 INFO L481 AbstractCegarLoop]: Abstraction has 2140 states and 2666 transitions. [2020-12-09 08:16:09,615 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-12-09 08:16:09,616 INFO L276 IsEmpty]: Start isEmpty. Operand 2140 states and 2666 transitions. [2020-12-09 08:16:09,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 462 [2020-12-09 08:16:09,618 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:16:09,619 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:16:09,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-12-09 08:16:09,820 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:16:09,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:16:09,822 INFO L82 PathProgramCache]: Analyzing trace with hash 1612264571, now seen corresponding path program 1 times [2020-12-09 08:16:09,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:16:09,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1600677831] [2020-12-09 08:16:09,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-12-09 08:16:10,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:16:10,062 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 08:16:10,066 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:16:10,618 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 394 proven. 277 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-12-09 08:16:10,619 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:16:12,028 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 642 proven. 29 refuted. 0 times theorem prover too weak. 128 trivial. 0 not checked. [2020-12-09 08:16:12,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1600677831] [2020-12-09 08:16:12,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1424348276] [2020-12-09 08:16:12,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/cvc4 Starting monitored process 10 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with cvc4 --incremental --print-success --lang smt [2020-12-09 08:16:12,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:16:12,235 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 08:16:12,239 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:16:12,597 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 3 disjuncts [2020-12-09 08:16:12,598 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:16:12,599 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:16:12,603 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:16:12,606 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:16:12,607 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:16:12,609 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-12-09 08:16:12,612 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:16:12,614 INFO L639 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-12-09 08:16:12,878 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 451 proven. 50 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2020-12-09 08:16:12,878 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:16:13,110 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 08:16:13,110 INFO L639 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-12-09 08:16:13,429 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 477 proven. 24 refuted. 0 times theorem prover too weak. 298 trivial. 0 not checked. [2020-12-09 08:16:13,429 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1513939824] [2020-12-09 08:16:13,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/z3 Starting monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 08:16:13,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:16:13,578 INFO L263 TraceCheckSpWp]: Trace formula consists of 536 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 08:16:13,582 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:16:14,125 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 360 proven. 144 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 08:16:14,125 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:16:14,603 INFO L134 CoverageAnalysis]: Checked inductivity of 799 backedges. 360 proven. 144 refuted. 0 times theorem prover too weak. 295 trivial. 0 not checked. [2020-12-09 08:16:14,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 08:16:14,604 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 7, 7, 4, 4] total 18 [2020-12-09 08:16:14,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1155183301] [2020-12-09 08:16:14,606 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-09 08:16:14,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:16:14,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-09 08:16:14,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2020-12-09 08:16:14,606 INFO L87 Difference]: Start difference. First operand 2140 states and 2666 transitions. Second operand 18 states. [2020-12-09 08:16:16,525 WARN L197 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 08:16:18,235 WARN L197 SmtUtils]: Spent 106.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2020-12-09 08:16:30,022 WARN L197 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2020-12-09 08:16:30,646 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 17 [2020-12-09 08:16:48,098 WARN L197 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 08:16:52,147 WARN L197 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 28 DAG size of output: 26 [2020-12-09 08:16:53,195 WARN L197 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 31 DAG size of output: 17 [2020-12-09 08:17:18,913 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:17:18,913 INFO L93 Difference]: Finished difference Result 5961 states and 7552 transitions. [2020-12-09 08:17:18,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-09 08:17:18,917 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 461 [2020-12-09 08:17:18,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:17:18,930 INFO L225 Difference]: With dead ends: 5961 [2020-12-09 08:17:18,930 INFO L226 Difference]: Without dead ends: 3920 [2020-12-09 08:17:18,932 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2777 GetRequests, 2747 SyntacticMatches, 3 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=194, Invalid=618, Unknown=0, NotChecked=0, Total=812 [2020-12-09 08:17:18,934 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2020-12-09 08:17:18,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2020-12-09 08:17:18,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3564 states. [2020-12-09 08:17:18,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3861 transitions. [2020-12-09 08:17:18,980 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3861 transitions. Word has length 461 [2020-12-09 08:17:18,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:17:18,980 INFO L481 AbstractCegarLoop]: Abstraction has 3564 states and 3861 transitions. [2020-12-09 08:17:18,980 INFO L482 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-12-09 08:17:18,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3861 transitions. [2020-12-09 08:17:18,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 710 [2020-12-09 08:17:18,985 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:17:18,985 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:17:19,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3,10 cvc4 --incremental --print-success --lang smt,11 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 08:17:19,589 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:17:19,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:17:19,591 INFO L82 PathProgramCache]: Analyzing trace with hash 1414487243, now seen corresponding path program 1 times [2020-12-09 08:17:19,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:17:19,600 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1768849195] [2020-12-09 08:17:19,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-12-09 08:17:19,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:17:19,815 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 08:17:19,824 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:17:20,879 WARN L197 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 41 [2020-12-09 08:17:21,065 WARN L197 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 45 [2020-12-09 08:17:21,166 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 6, 1] term [2020-12-09 08:17:21,166 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 7 disjuncts [2020-12-09 08:17:22,880 INFO L134 CoverageAnalysis]: Checked inductivity of 1379 backedges. 0 proven. 1162 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 08:17:22,881 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:17:23,798 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 08:17:23,798 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 08:17:26,719 INFO L134 CoverageAnalysis]: Checked inductivity of 1379 backedges. 735 proven. 427 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 08:17:26,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1768849195] [2020-12-09 08:17:26,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1964480995] [2020-12-09 08:17:26,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/cvc4 Starting monitored process 13 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with cvc4 --incremental --print-success --lang smt [2020-12-09 08:17:27,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:17:27,080 INFO L263 TraceCheckSpWp]: Trace formula consists of 791 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 08:17:27,085 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:17:27,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1379 backedges. 264 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2020-12-09 08:17:27,823 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:17:27,823 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 08:17:27,824 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [11, 11] total 23 [2020-12-09 08:17:27,824 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795246116] [2020-12-09 08:17:27,825 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 08:17:27,825 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:17:27,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 08:17:27,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=142, Invalid=364, Unknown=0, NotChecked=0, Total=506 [2020-12-09 08:17:27,826 INFO L87 Difference]: Start difference. First operand 3564 states and 3861 transitions. Second operand 5 states. [2020-12-09 08:17:31,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:17:31,587 INFO L93 Difference]: Finished difference Result 8062 states and 8968 transitions. [2020-12-09 08:17:31,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 08:17:31,587 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 709 [2020-12-09 08:17:31,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:17:31,603 INFO L225 Difference]: With dead ends: 8062 [2020-12-09 08:17:31,604 INFO L226 Difference]: Without dead ends: 5212 [2020-12-09 08:17:31,609 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2126 GetRequests, 2091 SyntacticMatches, 13 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2020-12-09 08:17:31,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5212 states. [2020-12-09 08:17:31,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5212 to 5166. [2020-12-09 08:17:31,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5166 states. [2020-12-09 08:17:31,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5654 transitions. [2020-12-09 08:17:31,670 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5654 transitions. Word has length 709 [2020-12-09 08:17:31,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:17:31,671 INFO L481 AbstractCegarLoop]: Abstraction has 5166 states and 5654 transitions. [2020-12-09 08:17:31,671 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 08:17:31,671 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5654 transitions. [2020-12-09 08:17:31,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 798 [2020-12-09 08:17:31,677 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:17:31,678 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:17:32,079 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 cvc4 --incremental --print-success --lang smt,12 mathsat -unsat_core_generation=3 [2020-12-09 08:17:32,080 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:17:32,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:17:32,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1789905102, now seen corresponding path program 1 times [2020-12-09 08:17:32,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:17:32,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [992839021] [2020-12-09 08:17:32,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-12-09 08:17:32,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:17:32,371 INFO L263 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 15 conjunts are in the unsatisfiable core [2020-12-09 08:17:32,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:17:35,251 INFO L134 CoverageAnalysis]: Checked inductivity of 1871 backedges. 703 proven. 898 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2020-12-09 08:17:35,252 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:17:36,370 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 2, 1] term [2020-12-09 08:17:36,370 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 08:17:39,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1871 backedges. 1333 proven. 268 refuted. 0 times theorem prover too weak. 270 trivial. 0 not checked. [2020-12-09 08:17:39,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [992839021] [2020-12-09 08:17:39,795 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1542852513] [2020-12-09 08:17:39,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/cvc4 Starting monitored process 15 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with cvc4 --incremental --print-success --lang smt [2020-12-09 08:17:40,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:17:40,606 INFO L263 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 11 conjunts are in the unsatisfiable core [2020-12-09 08:17:40,613 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:17:41,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1871 backedges. 317 proven. 1337 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 08:17:41,761 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:17:44,504 INFO L134 CoverageAnalysis]: Checked inductivity of 1871 backedges. 963 proven. 691 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 08:17:44,504 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1325295625] [2020-12-09 08:17:44,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/z3 Starting monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 08:17:44,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:17:44,776 INFO L263 TraceCheckSpWp]: Trace formula consists of 889 conjuncts, 9 conjunts are in the unsatisfiable core [2020-12-09 08:17:44,782 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:17:45,704 INFO L134 CoverageAnalysis]: Checked inductivity of 1871 backedges. 317 proven. 1337 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 08:17:45,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:17:47,543 WARN L197 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 19 [2020-12-09 08:17:50,058 WARN L197 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 08:17:52,874 WARN L197 SmtUtils]: Spent 412.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-12-09 08:17:56,010 INFO L134 CoverageAnalysis]: Checked inductivity of 1871 backedges. 910 proven. 744 refuted. 0 times theorem prover too weak. 217 trivial. 0 not checked. [2020-12-09 08:17:56,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 08:17:56,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 6, 7, 5, 6] total 32 [2020-12-09 08:17:56,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444381911] [2020-12-09 08:17:56,014 INFO L461 AbstractCegarLoop]: Interpolant automaton has 32 states [2020-12-09 08:17:56,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:17:56,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2020-12-09 08:17:56,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=307, Invalid=685, Unknown=0, NotChecked=0, Total=992 [2020-12-09 08:17:56,015 INFO L87 Difference]: Start difference. First operand 5166 states and 5654 transitions. Second operand 32 states. [2020-12-09 08:18:29,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:18:29,127 INFO L93 Difference]: Finished difference Result 11558 states and 12706 transitions. [2020-12-09 08:18:29,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2020-12-09 08:18:29,127 INFO L78 Accepts]: Start accepts. Automaton has 32 states. Word has length 797 [2020-12-09 08:18:29,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:18:29,149 INFO L225 Difference]: With dead ends: 11558 [2020-12-09 08:18:29,149 INFO L226 Difference]: Without dead ends: 7106 [2020-12-09 08:18:29,152 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4791 GetRequests, 4735 SyntacticMatches, 17 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 409 ImplicationChecksByTransitivity, 10.9s TimeCoverageRelationStatistics Valid=481, Invalid=1159, Unknown=0, NotChecked=0, Total=1640 [2020-12-09 08:18:29,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7106 states. [2020-12-09 08:18:29,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7106 to 5869. [2020-12-09 08:18:29,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5869 states. [2020-12-09 08:18:29,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5869 states to 5869 states and 6159 transitions. [2020-12-09 08:18:29,231 INFO L78 Accepts]: Start accepts. Automaton has 5869 states and 6159 transitions. Word has length 797 [2020-12-09 08:18:29,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:18:29,232 INFO L481 AbstractCegarLoop]: Abstraction has 5869 states and 6159 transitions. [2020-12-09 08:18:29,232 INFO L482 AbstractCegarLoop]: Interpolant automaton has 32 states. [2020-12-09 08:18:29,232 INFO L276 IsEmpty]: Start isEmpty. Operand 5869 states and 6159 transitions. [2020-12-09 08:18:29,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 970 [2020-12-09 08:18:29,240 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:18:29,240 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:18:29,842 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 z3 -smt2 -in SMTLIB2_COMPLIANT=true,14 mathsat -unsat_core_generation=3,15 cvc4 --incremental --print-success --lang smt [2020-12-09 08:18:29,843 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:18:29,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:18:29,845 INFO L82 PathProgramCache]: Analyzing trace with hash 554182334, now seen corresponding path program 1 times [2020-12-09 08:18:29,850 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:18:29,850 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [16147939] [2020-12-09 08:18:29,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-12-09 08:18:30,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:18:30,122 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 14 conjunts are in the unsatisfiable core [2020-12-09 08:18:30,133 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:18:31,579 WARN L197 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-12-09 08:18:31,583 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 6, 1] term [2020-12-09 08:18:31,583 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 7 disjuncts [2020-12-09 08:18:34,353 INFO L134 CoverageAnalysis]: Checked inductivity of 2975 backedges. 113 proven. 2083 refuted. 0 times theorem prover too weak. 779 trivial. 0 not checked. [2020-12-09 08:18:34,353 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:18:35,351 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 1] term [2020-12-09 08:18:35,351 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 08:18:37,853 WARN L197 SmtUtils]: Spent 1.17 s on a formula simplification. DAG size of input: 16 DAG size of output: 3 [2020-12-09 08:18:40,597 INFO L134 CoverageAnalysis]: Checked inductivity of 2975 backedges. 550 proven. 1646 refuted. 0 times theorem prover too weak. 779 trivial. 0 not checked. [2020-12-09 08:18:40,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [16147939] [2020-12-09 08:18:40,598 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [2101596061] [2020-12-09 08:18:40,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/cvc4 Starting monitored process 18 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with cvc4 --incremental --print-success --lang smt [2020-12-09 08:18:41,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:18:41,093 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 08:18:41,099 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:18:42,886 INFO L134 CoverageAnalysis]: Checked inductivity of 2975 backedges. 1913 proven. 349 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked. [2020-12-09 08:18:42,886 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:18:44,510 INFO L134 CoverageAnalysis]: Checked inductivity of 2975 backedges. 1913 proven. 349 refuted. 0 times theorem prover too weak. 713 trivial. 0 not checked. [2020-12-09 08:18:44,511 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720370281] [2020-12-09 08:18:44,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/z3 Starting monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 08:18:44,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:18:44,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 1078 conjuncts, 7 conjunts are in the unsatisfiable core [2020-12-09 08:18:44,749 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:18:46,424 INFO L134 CoverageAnalysis]: Checked inductivity of 2975 backedges. 1902 proven. 93 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2020-12-09 08:18:46,424 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:18:48,047 INFO L134 CoverageAnalysis]: Checked inductivity of 2975 backedges. 1902 proven. 93 refuted. 0 times theorem prover too weak. 980 trivial. 0 not checked. [2020-12-09 08:18:48,047 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 6 imperfect interpolant sequences. [2020-12-09 08:18:48,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 6, 6, 4, 4] total 27 [2020-12-09 08:18:48,049 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175369773] [2020-12-09 08:18:48,052 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-12-09 08:18:48,052 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:18:48,052 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-12-09 08:18:48,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=174, Invalid=528, Unknown=0, NotChecked=0, Total=702 [2020-12-09 08:18:48,053 INFO L87 Difference]: Start difference. First operand 5869 states and 6159 transitions. Second operand 27 states. [2020-12-09 08:18:57,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:18:57,298 INFO L93 Difference]: Finished difference Result 11613 states and 12207 transitions. [2020-12-09 08:18:57,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-09 08:18:57,298 INFO L78 Accepts]: Start accepts. Automaton has 27 states. Word has length 969 [2020-12-09 08:18:57,299 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:18:57,325 INFO L225 Difference]: With dead ends: 11613 [2020-12-09 08:18:57,325 INFO L226 Difference]: Without dead ends: 6093 [2020-12-09 08:18:57,329 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5828 GetRequests, 5753 SyntacticMatches, 37 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 403 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=362, Invalid=1198, Unknown=0, NotChecked=0, Total=1560 [2020-12-09 08:18:57,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6093 states. [2020-12-09 08:18:57,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6093 to 5846. [2020-12-09 08:18:57,383 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5846 states. [2020-12-09 08:18:57,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 6085 transitions. [2020-12-09 08:18:57,388 INFO L78 Accepts]: Start accepts. Automaton has 5846 states and 6085 transitions. Word has length 969 [2020-12-09 08:18:57,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:18:57,389 INFO L481 AbstractCegarLoop]: Abstraction has 5846 states and 6085 transitions. [2020-12-09 08:18:57,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 27 states. [2020-12-09 08:18:57,389 INFO L276 IsEmpty]: Start isEmpty. Operand 5846 states and 6085 transitions. [2020-12-09 08:18:57,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1047 [2020-12-09 08:18:57,397 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:18:57,398 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:18:57,999 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3,19 z3 -smt2 -in SMTLIB2_COMPLIANT=true,18 cvc4 --incremental --print-success --lang smt [2020-12-09 08:18:58,001 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:18:58,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:18:58,003 INFO L82 PathProgramCache]: Analyzing trace with hash -1812932201, now seen corresponding path program 1 times [2020-12-09 08:18:58,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:18:58,014 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [48932455] [2020-12-09 08:18:58,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/mathsat Starting monitored process 20 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with mathsat -unsat_core_generation=3 [2020-12-09 08:18:58,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:18:58,302 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 08:18:58,307 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:18:59,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3631 backedges. 982 proven. 2225 refuted. 0 times theorem prover too weak. 424 trivial. 0 not checked. [2020-12-09 08:18:59,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:19:01,624 INFO L134 CoverageAnalysis]: Checked inductivity of 3631 backedges. 2534 proven. 100 refuted. 0 times theorem prover too weak. 997 trivial. 0 not checked. [2020-12-09 08:19:01,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [48932455] [2020-12-09 08:19:01,625 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [953982068] [2020-12-09 08:19:01,625 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/cvc4 Starting monitored process 21 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 21 with cvc4 --incremental --print-success --lang smt [2020-12-09 08:19:02,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:19:02,139 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 08:19:02,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:19:03,223 INFO L134 CoverageAnalysis]: Checked inductivity of 3631 backedges. 982 proven. 22 refuted. 0 times theorem prover too weak. 2627 trivial. 0 not checked. [2020-12-09 08:19:03,223 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:19:04,126 INFO L134 CoverageAnalysis]: Checked inductivity of 3631 backedges. 982 proven. 22 refuted. 0 times theorem prover too weak. 2627 trivial. 0 not checked. [2020-12-09 08:19:04,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1921285647] [2020-12-09 08:19:04,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/z3 Starting monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 22 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 08:19:04,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:19:04,374 INFO L263 TraceCheckSpWp]: Trace formula consists of 1164 conjuncts, 6 conjunts are in the unsatisfiable core [2020-12-09 08:19:04,379 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:19:05,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3631 backedges. 1004 proven. 0 refuted. 0 times theorem prover too weak. 2627 trivial. 0 not checked. [2020-12-09 08:19:05,840 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:19:05,840 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 4 imperfect interpolant sequences. [2020-12-09 08:19:05,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6, 5, 4, 4] total 14 [2020-12-09 08:19:05,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [49908784] [2020-12-09 08:19:05,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-12-09 08:19:05,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:19:05,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-12-09 08:19:05,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-12-09 08:19:05,843 INFO L87 Difference]: Start difference. First operand 5846 states and 6085 transitions. Second operand 4 states. [2020-12-09 08:19:07,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:19:07,838 INFO L93 Difference]: Finished difference Result 10676 states and 11145 transitions. [2020-12-09 08:19:07,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-12-09 08:19:07,839 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 1046 [2020-12-09 08:19:07,839 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:19:07,846 INFO L225 Difference]: With dead ends: 10676 [2020-12-09 08:19:07,847 INFO L226 Difference]: Without dead ends: 5846 [2020-12-09 08:19:07,850 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5225 GetRequests, 5212 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=46, Invalid=136, Unknown=0, NotChecked=0, Total=182 [2020-12-09 08:19:07,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5846 states. [2020-12-09 08:19:07,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5846 to 5846. [2020-12-09 08:19:07,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5846 states. [2020-12-09 08:19:07,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5846 states to 5846 states and 6079 transitions. [2020-12-09 08:19:07,904 INFO L78 Accepts]: Start accepts. Automaton has 5846 states and 6079 transitions. Word has length 1046 [2020-12-09 08:19:07,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:19:07,905 INFO L481 AbstractCegarLoop]: Abstraction has 5846 states and 6079 transitions. [2020-12-09 08:19:07,905 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-12-09 08:19:07,905 INFO L276 IsEmpty]: Start isEmpty. Operand 5846 states and 6079 transitions. [2020-12-09 08:19:07,914 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1070 [2020-12-09 08:19:07,914 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 08:19:07,914 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 08:19:08,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3,21 cvc4 --incremental --print-success --lang smt,22 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-12-09 08:19:08,517 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 08:19:08,518 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 08:19:08,519 INFO L82 PathProgramCache]: Analyzing trace with hash 1805183648, now seen corresponding path program 1 times [2020-12-09 08:19:08,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-12-09 08:19:08,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [356123016] [2020-12-09 08:19:08,524 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/mathsat Starting monitored process 23 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 23 with mathsat -unsat_core_generation=3 [2020-12-09 08:19:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:19:08,821 INFO L263 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 17 conjunts are in the unsatisfiable core [2020-12-09 08:19:08,828 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:19:10,016 WARN L197 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2020-12-09 08:19:10,210 WARN L197 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-12-09 08:19:10,232 INFO L398 QuantifierPusher]: Applying distributivity to a CONJUNCTION[7, 6, 1] term [2020-12-09 08:19:10,232 INFO L639 QuantifierPusher]: Distributing 6 conjuncts over 7 disjuncts [2020-12-09 08:19:12,751 INFO L134 CoverageAnalysis]: Checked inductivity of 3701 backedges. 1172 proven. 2295 refuted. 0 times theorem prover too weak. 234 trivial. 0 not checked. [2020-12-09 08:19:12,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-12-09 08:19:13,736 INFO L398 QuantifierPusher]: Applying distributivity to a DISJUNCTION[7, 6, 3, 1] term [2020-12-09 08:19:13,736 INFO L639 QuantifierPusher]: Distributing 6 disjuncts over 7 conjuncts [2020-12-09 08:19:17,076 WARN L197 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 3 [2020-12-09 08:19:19,725 INFO L134 CoverageAnalysis]: Checked inductivity of 3701 backedges. 2918 proven. 186 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2020-12-09 08:19:19,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [356123016] [2020-12-09 08:19:19,725 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleCvc4 [1534944092] [2020-12-09 08:19:19,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/cvc4 Starting monitored process 24 with cvc4 --incremental --print-success --lang smt (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 24 with cvc4 --incremental --print-success --lang smt [2020-12-09 08:19:20,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 08:19:20,157 INFO L263 TraceCheckSpWp]: Trace formula consists of 1187 conjuncts, 8 conjunts are in the unsatisfiable core [2020-12-09 08:19:20,163 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-12-09 08:19:20,798 INFO L639 QuantifierPusher]: Distributing 4 conjuncts over 2 disjuncts [2020-12-09 08:19:20,798 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 08:19:20,800 INFO L639 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-12-09 08:19:21,379 INFO L134 CoverageAnalysis]: Checked inductivity of 3701 backedges. 476 proven. 0 refuted. 0 times theorem prover too weak. 3225 trivial. 0 not checked. [2020-12-09 08:19:21,379 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-12-09 08:19:21,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-12-09 08:19:21,380 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [14, 13] total 28 [2020-12-09 08:19:21,380 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767089568] [2020-12-09 08:19:21,381 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 08:19:21,381 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-12-09 08:19:21,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 08:19:21,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=597, Unknown=0, NotChecked=0, Total=756 [2020-12-09 08:19:21,382 INFO L87 Difference]: Start difference. First operand 5846 states and 6079 transitions. Second operand 5 states. [2020-12-09 08:19:23,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 08:19:23,919 INFO L93 Difference]: Finished difference Result 11592 states and 12129 transitions. [2020-12-09 08:19:23,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-12-09 08:19:23,920 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 1069 [2020-12-09 08:19:23,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 08:19:23,920 INFO L225 Difference]: With dead ends: 11592 [2020-12-09 08:19:23,921 INFO L226 Difference]: Without dead ends: 0 [2020-12-09 08:19:23,927 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3204 GetRequests, 3173 SyntacticMatches, 5 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=159, Invalid=597, Unknown=0, NotChecked=0, Total=756 [2020-12-09 08:19:23,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-12-09 08:19:23,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-12-09 08:19:23,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-12-09 08:19:23,927 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-12-09 08:19:23,927 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1069 [2020-12-09 08:19:23,927 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 08:19:23,927 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-12-09 08:19:23,928 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 08:19:23,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-12-09 08:19:23,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-12-09 08:19:24,329 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 mathsat -unsat_core_generation=3,24 cvc4 --incremental --print-success --lang smt [2020-12-09 08:19:24,335 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-12-09 08:19:24,629 WARN L197 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 191 [2020-12-09 08:19:24,800 WARN L197 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 247 DAG size of output: 191 [2020-12-09 08:19:28,158 WARN L197 SmtUtils]: Spent 3.35 s on a formula simplification. DAG size of input: 174 DAG size of output: 71 [2020-12-09 08:19:31,758 WARN L197 SmtUtils]: Spent 3.60 s on a formula simplification. DAG size of input: 174 DAG size of output: 71 [2020-12-09 08:19:31,761 INFO L262 CegarLoopResult]: For program point L762(lines 762 880) no Hoare annotation was computed. [2020-12-09 08:19:31,761 INFO L262 CegarLoopResult]: For program point L895(line 895) no Hoare annotation was computed. [2020-12-09 08:19:31,761 INFO L262 CegarLoopResult]: For program point L829(lines 829 880) no Hoare annotation was computed. [2020-12-09 08:19:31,761 INFO L262 CegarLoopResult]: For program point L631(lines 631 880) no Hoare annotation was computed. [2020-12-09 08:19:31,761 INFO L262 CegarLoopResult]: For program point L565(lines 565 880) no Hoare annotation was computed. [2020-12-09 08:19:31,761 INFO L262 CegarLoopResult]: For program point L169-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,761 INFO L262 CegarLoopResult]: For program point L103-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,761 INFO L262 CegarLoopResult]: For program point L37-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,761 INFO L262 CegarLoopResult]: For program point L698(lines 698 880) no Hoare annotation was computed. [2020-12-09 08:19:31,761 INFO L262 CegarLoopResult]: For program point L500(lines 500 880) no Hoare annotation was computed. [2020-12-09 08:19:31,761 INFO L262 CegarLoopResult]: For program point L170(line 170) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L104(line 104) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L38(line 38) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L369(lines 369 880) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L303(lines 303 880) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L436(lines 436 880) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L172-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L106-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L40-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L239(lines 239 880) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L173(line 173) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L107(line 107) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L768(lines 768 880) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L636(lines 636 880) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L835(lines 835 880) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L571(lines 571 880) no Hoare annotation was computed. [2020-12-09 08:19:31,762 INFO L262 CegarLoopResult]: For program point L505(lines 505 880) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L175-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L109-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L43-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L704(lines 704 880) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L176(line 176) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L110(line 110) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L44(line 44) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L309(lines 309 880) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L442(lines 442 880) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L376(lines 376 880) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L178-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L112-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L46-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L245(lines 245 880) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L179(line 179) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L113(line 113) no Hoare annotation was computed. [2020-12-09 08:19:31,763 INFO L262 CegarLoopResult]: For program point L47(line 47) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L774(lines 774 880) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L642(lines 642 880) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L510(lines 510 880) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L841(lines 841 880) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L181-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L115-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L49-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L710(lines 710 880) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L578(lines 578 880) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L182(line 182) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L116(line 116) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L50(line 50) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L315(lines 315 880) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L448(lines 448 880) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L382(lines 382 880) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L184-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,764 INFO L262 CegarLoopResult]: For program point L118-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L52-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L251(lines 251 880) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L185(line 185) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L119(line 119) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L53(line 53) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L648(lines 648 880) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L516(lines 516 880) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L847(lines 847 880) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L781(lines 781 880) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L583(lines 583 880) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L187-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L121-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L55-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L716(lines 716 880) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L188(line 188) no Hoare annotation was computed. [2020-12-09 08:19:31,765 INFO L262 CegarLoopResult]: For program point L122(line 122) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L56(line 56) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L321(lines 321 880) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L454(lines 454 880) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L388(lines 388 880) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L190-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L124-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L58-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L257(lines 257 880) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L191(line 191) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L125(line 125) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L59(line 59) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L852(lines 852 880) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L654(lines 654 880) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L522(lines 522 880) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L787(lines 787 880) no Hoare annotation was computed. [2020-12-09 08:19:31,766 INFO L262 CegarLoopResult]: For program point L589(lines 589 880) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L193-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L127-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L61-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L722(lines 722 880) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L194(line 194) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L128(line 128) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L62(line 62) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L459(lines 459 880) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L327(lines 327 880) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L394(lines 394 880) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L262(lines 262 880) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L196-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L130-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L64-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L197(line 197) no Hoare annotation was computed. [2020-12-09 08:19:31,767 INFO L262 CegarLoopResult]: For program point L131(line 131) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point L65(line 65) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point L858(lines 858 880) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 179) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point L660(lines 660 880) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point L528(lines 528 880) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point L793(lines 793 880) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point L595(lines 595 880) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point L199-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point L133-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point L67-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point L728(lines 728 880) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point L464(lines 464 880) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point L200(line 200) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point L134(line 134) no Hoare annotation was computed. [2020-12-09 08:19:31,768 INFO L262 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L333(lines 333 880) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L400(lines 400 880) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L268(lines 268 880) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L202-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L136-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L70-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L203(line 203) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L137(line 137) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L71(line 71) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L864(lines 864 880) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L666(lines 666 880) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L534(lines 534 880) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L799(lines 799 880) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L601(lines 601 880) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L205-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L139-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,769 INFO L262 CegarLoopResult]: For program point L73-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L734(lines 734 880) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L470(lines 470 880) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L206(line 206) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L140(line 140) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L339(lines 339 880) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L406(lines 406 880) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L274(lines 274 880) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L208-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L142-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L76-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L869(lines 869 880) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L209(line 209) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L143(line 143) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L77(line 77) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L672(lines 672 880) no Hoare annotation was computed. [2020-12-09 08:19:31,770 INFO L262 CegarLoopResult]: For program point L540(lines 540 880) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L805(lines 805 880) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L607(lines 607 880) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L211-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L145-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L79-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L740(lines 740 880) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L212(line 212) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L146(line 146) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L477(lines 477 880) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L345(lines 345 880) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L279(lines 279 880) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L412(lines 412 880) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L148-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L82-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L875(lines 875 880) no Hoare annotation was computed. [2020-12-09 08:19:31,771 INFO L262 CegarLoopResult]: For program point L149(line 149) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L83(line 83) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L678(lines 678 880) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L546(lines 546 880) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L811(lines 811 880) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L745(lines 745 880) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L613(lines 613 880) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L151-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L85-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L482(lines 482 880) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L152(line 152) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L86(line 86) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L351(lines 351 880) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L285(lines 285 880) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L418(lines 418 880) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L154-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,772 INFO L262 CegarLoopResult]: For program point L88-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,773 INFO L258 CegarLoopResult]: At program point L881(lines 30 882) the Hoare annotation is: (let ((.cse9 (= (_ bv8 32) ~a21~0)) (.cse11 (bvsle ~a12~0 (_ bv4294967253 32))) (.cse12 (= (_ bv8 32) ~a15~0)) (.cse0 (= (_ bv1 32) ~a24~0)) (.cse10 (not (bvslt (_ bv11 32) ~a12~0)))) (let ((.cse3 (or .cse10 (not (bvsge (_ bv80 32) ~a12~0)))) (.cse5 (or (not .cse12) (not .cse0))) (.cse1 (not .cse11)) (.cse4 (bvsle (bvmul (bvsdiv (bvadd ~a12~0 (_ bv4294438260 32)) (_ bv5 32)) (_ bv5 32)) (_ bv4294967253 32))) (.cse6 (= (_ bv5 32) ~a15~0)) (.cse8 (or (not (bvslt (_ bv80 32) (bvadd ~a12~0 (_ bv4294367247 32)))) (and .cse11 .cse12 (or (= (_ bv9 32) ~a21~0) (= (_ bv10 32) ~a21~0) .cse9)))) (.cse7 (= (_ bv6 32) ~a21~0)) (.cse2 (or (not (bvsge (_ bv11 32) ~a12~0)) (not (bvslt (_ bv4294967253 32) ~a12~0))))) (or (and .cse0 (not (= (_ bv6 32) ~a15~0)) .cse1 (not (bvslt (_ bv80 32) (bvadd ~a12~0 (_ bv4294367312 32)))) .cse2) (and .cse0 (= (_ bv0 32) ~a12~0)) (and .cse0 .cse3 .cse1 .cse4 .cse5) (and .cse0 .cse6 .cse7) (and .cse0 .cse1 .cse4 .cse7 .cse2) (and .cse0 .cse8 (not (bvslt (_ bv80 32) ~a12~0)) .cse3 .cse5) (and .cse0 .cse1 .cse4 .cse9 .cse2) (and .cse0 (= ~a12~0 (_ bv4294967247 32))) (and .cse6 .cse8 .cse10 .cse7 .cse2)))) [2020-12-09 08:19:31,773 INFO L262 CegarLoopResult]: For program point L551(lines 551 880) no Hoare annotation was computed. [2020-12-09 08:19:31,773 INFO L262 CegarLoopResult]: For program point L221(lines 221 880) no Hoare annotation was computed. [2020-12-09 08:19:31,773 INFO L262 CegarLoopResult]: For program point L155(line 155) no Hoare annotation was computed. [2020-12-09 08:19:31,773 INFO L262 CegarLoopResult]: For program point L89(line 89) no Hoare annotation was computed. [2020-12-09 08:19:31,773 INFO L262 CegarLoopResult]: For program point L684(lines 684 880) no Hoare annotation was computed. [2020-12-09 08:19:31,773 INFO L262 CegarLoopResult]: For program point L817(lines 817 880) no Hoare annotation was computed. [2020-12-09 08:19:31,773 INFO L262 CegarLoopResult]: For program point L751(lines 751 880) no Hoare annotation was computed. [2020-12-09 08:19:31,773 INFO L262 CegarLoopResult]: For program point L619(lines 619 880) no Hoare annotation was computed. [2020-12-09 08:19:31,773 INFO L262 CegarLoopResult]: For program point L157-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point L91-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L265 CegarLoopResult]: At program point L884(lines 884 900) the Hoare annotation is: true [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point L488(lines 488 880) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point L290(lines 290 880) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point L158(line 158) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point L92(line 92) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point L687(lines 687 880) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point L357(lines 357 880) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point L424(lines 424 880) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point L160-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point L94-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point L557(lines 557 880) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point L227(lines 227 880) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point L161(line 161) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point L95(line 95) no Hoare annotation was computed. [2020-12-09 08:19:31,774 INFO L262 CegarLoopResult]: For program point L757(lines 757 880) no Hoare annotation was computed. [2020-12-09 08:19:31,775 INFO L262 CegarLoopResult]: For program point L625(lines 625 880) no Hoare annotation was computed. [2020-12-09 08:19:31,775 INFO L262 CegarLoopResult]: For program point L163-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,775 INFO L262 CegarLoopResult]: For program point L97-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,775 INFO L262 CegarLoopResult]: For program point L31(lines 31 33) no Hoare annotation was computed. [2020-12-09 08:19:31,775 INFO L262 CegarLoopResult]: For program point L31-2(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,775 INFO L262 CegarLoopResult]: For program point L824(lines 824 880) no Hoare annotation was computed. [2020-12-09 08:19:31,775 INFO L258 CegarLoopResult]: At program point L890-2(lines 890 899) the Hoare annotation is: (let ((.cse9 (= (_ bv8 32) ~a21~0)) (.cse11 (bvsle ~a12~0 (_ bv4294967253 32))) (.cse12 (= (_ bv8 32) ~a15~0)) (.cse0 (= (_ bv1 32) ~a24~0)) (.cse10 (not (bvslt (_ bv11 32) ~a12~0)))) (let ((.cse3 (or .cse10 (not (bvsge (_ bv80 32) ~a12~0)))) (.cse5 (or (not .cse12) (not .cse0))) (.cse1 (not .cse11)) (.cse4 (bvsle (bvmul (bvsdiv (bvadd ~a12~0 (_ bv4294438260 32)) (_ bv5 32)) (_ bv5 32)) (_ bv4294967253 32))) (.cse6 (= (_ bv5 32) ~a15~0)) (.cse8 (or (not (bvslt (_ bv80 32) (bvadd ~a12~0 (_ bv4294367247 32)))) (and .cse11 .cse12 (or (= (_ bv9 32) ~a21~0) (= (_ bv10 32) ~a21~0) .cse9)))) (.cse7 (= (_ bv6 32) ~a21~0)) (.cse2 (or (not (bvsge (_ bv11 32) ~a12~0)) (not (bvslt (_ bv4294967253 32) ~a12~0))))) (or (and .cse0 (not (= (_ bv6 32) ~a15~0)) .cse1 (not (bvslt (_ bv80 32) (bvadd ~a12~0 (_ bv4294367312 32)))) .cse2) (and .cse0 (= (_ bv0 32) ~a12~0)) (and .cse0 .cse3 .cse1 .cse4 .cse5) (and .cse0 .cse6 .cse7) (and .cse0 .cse1 .cse4 .cse7 .cse2) (and .cse0 .cse8 (not (bvslt (_ bv80 32) ~a12~0)) .cse3 .cse5) (and .cse0 .cse1 .cse4 .cse9 .cse2) (and .cse0 (= ~a12~0 (_ bv4294967247 32))) (and .cse6 .cse8 .cse10 .cse7 .cse2)))) [2020-12-09 08:19:31,775 INFO L262 CegarLoopResult]: For program point L494(lines 494 880) no Hoare annotation was computed. [2020-12-09 08:19:31,775 INFO L262 CegarLoopResult]: For program point L296(lines 296 880) no Hoare annotation was computed. [2020-12-09 08:19:31,775 INFO L262 CegarLoopResult]: For program point L164(line 164) no Hoare annotation was computed. [2020-12-09 08:19:31,775 INFO L262 CegarLoopResult]: For program point L98(line 98) no Hoare annotation was computed. [2020-12-09 08:19:31,775 INFO L262 CegarLoopResult]: For program point L32(line 32) no Hoare annotation was computed. [2020-12-09 08:19:31,775 INFO L262 CegarLoopResult]: For program point L693(lines 693 880) no Hoare annotation was computed. [2020-12-09 08:19:31,776 INFO L262 CegarLoopResult]: For program point L363(lines 363 880) no Hoare annotation was computed. [2020-12-09 08:19:31,776 INFO L262 CegarLoopResult]: For program point L562(lines 562 880) no Hoare annotation was computed. [2020-12-09 08:19:31,776 INFO L262 CegarLoopResult]: For program point L430(lines 430 880) no Hoare annotation was computed. [2020-12-09 08:19:31,776 INFO L262 CegarLoopResult]: For program point L166-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,776 INFO L262 CegarLoopResult]: For program point L100-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,776 INFO L262 CegarLoopResult]: For program point L34-1(lines 30 882) no Hoare annotation was computed. [2020-12-09 08:19:31,776 INFO L262 CegarLoopResult]: For program point L233(lines 233 880) no Hoare annotation was computed. [2020-12-09 08:19:31,776 INFO L262 CegarLoopResult]: For program point L167(line 167) no Hoare annotation was computed. [2020-12-09 08:19:31,776 INFO L262 CegarLoopResult]: For program point L101(line 101) no Hoare annotation was computed. [2020-12-09 08:19:31,776 INFO L262 CegarLoopResult]: For program point L35(line 35) no Hoare annotation was computed. [2020-12-09 08:19:31,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 08:19:31 BoogieIcfgContainer [2020-12-09 08:19:31,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 08:19:31,794 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 08:19:31,794 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 08:19:31,795 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 08:19:31,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 08:15:37" (3/4) ... [2020-12-09 08:19:31,797 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-12-09 08:19:31,815 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2020-12-09 08:19:31,816 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-12-09 08:19:31,817 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 08:19:31,818 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-12-09 08:19:31,911 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_f36aa759-79c7-4832-b95a-de268c76abc6/bin/utaipan/witness.graphml [2020-12-09 08:19:31,912 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 08:19:31,912 INFO L168 Benchmark]: Toolchain (without parser) took 237336.70 ms. Allocated memory was 56.6 MB in the beginning and 708.8 MB in the end (delta: 652.2 MB). Free memory was 32.9 MB in the beginning and 335.0 MB in the end (delta: -302.2 MB). Peak memory consumption was 349.9 MB. Max. memory is 16.1 GB. [2020-12-09 08:19:31,913 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 39.2 MB in the beginning and 39.1 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 08:19:31,913 INFO L168 Benchmark]: CACSL2BoogieTranslator took 498.01 ms. Allocated memory was 56.6 MB in the beginning and 111.1 MB in the end (delta: 54.5 MB). Free memory was 32.6 MB in the beginning and 70.5 MB in the end (delta: -38.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2020-12-09 08:19:31,913 INFO L168 Benchmark]: Boogie Procedure Inliner took 84.47 ms. Allocated memory is still 111.1 MB. Free memory was 70.5 MB in the beginning and 88.5 MB in the end (delta: -18.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. [2020-12-09 08:19:31,913 INFO L168 Benchmark]: Boogie Preprocessor took 66.92 ms. Allocated memory is still 111.1 MB. Free memory was 88.5 MB in the beginning and 83.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 08:19:31,914 INFO L168 Benchmark]: RCFGBuilder took 2560.86 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 83.1 MB in the beginning and 89.2 MB in the end (delta: -6.0 MB). Peak memory consumption was 41.3 MB. Max. memory is 16.1 GB. [2020-12-09 08:19:31,914 INFO L168 Benchmark]: TraceAbstraction took 234003.67 ms. Allocated memory was 134.2 MB in the beginning and 708.8 MB in the end (delta: 574.6 MB). Free memory was 88.2 MB in the beginning and 354.9 MB in the end (delta: -266.8 MB). Peak memory consumption was 479.7 MB. Max. memory is 16.1 GB. [2020-12-09 08:19:31,914 INFO L168 Benchmark]: Witness Printer took 117.25 ms. Allocated memory is still 708.8 MB. Free memory was 354.9 MB in the beginning and 335.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 08:19:31,916 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 56.6 MB. Free memory was 39.2 MB in the beginning and 39.1 MB in the end (delta: 83.9 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 498.01 ms. Allocated memory was 56.6 MB in the beginning and 111.1 MB in the end (delta: 54.5 MB). Free memory was 32.6 MB in the beginning and 70.5 MB in the end (delta: -38.0 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 84.47 ms. Allocated memory is still 111.1 MB. Free memory was 70.5 MB in the beginning and 88.5 MB in the end (delta: -18.0 MB). Peak memory consumption was 13.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 66.92 ms. Allocated memory is still 111.1 MB. Free memory was 88.5 MB in the beginning and 83.1 MB in the end (delta: 5.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * RCFGBuilder took 2560.86 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 83.1 MB in the beginning and 89.2 MB in the end (delta: -6.0 MB). Peak memory consumption was 41.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 234003.67 ms. Allocated memory was 134.2 MB in the beginning and 708.8 MB in the end (delta: 574.6 MB). Free memory was 88.2 MB in the beginning and 354.9 MB in the end (delta: -266.8 MB). Peak memory consumption was 479.7 MB. Max. memory is 16.1 GB. * Witness Printer took 117.25 ms. Allocated memory is still 708.8 MB. Free memory was 354.9 MB in the beginning and 335.0 MB in the end (delta: 19.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 179]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 884]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: (((((((((((1bv32 == a24 && !(6bv32 == a15)) && !~bvsle32(a12, 4294967253bv32)) && !~bvslt32(80bv32, ~bvadd64(a12, 4294367312bv32))) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12))) || (1bv32 == a24 && 0bv32 == a12)) || ((((1bv32 == a24 && (!~bvslt32(11bv32, a12) || !~bvsge32(80bv32, a12))) && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && (!(8bv32 == a15) || !(1bv32 == a24)))) || ((1bv32 == a24 && 5bv32 == a15) && 6bv32 == a21)) || ((((1bv32 == a24 && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && 6bv32 == a21) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || ((((1bv32 == a24 && (!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) || ((~bvsle32(a12, 4294967253bv32) && 8bv32 == a15) && ((9bv32 == a21 || 10bv32 == a21) || 8bv32 == a21)))) && !~bvslt32(80bv32, a12)) && (!~bvslt32(11bv32, a12) || !~bvsge32(80bv32, a12))) && (!(8bv32 == a15) || !(1bv32 == a24)))) || ((((1bv32 == a24 && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && 8bv32 == a21) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || (1bv32 == a24 && a12 == 4294967247bv32)) || ((((5bv32 == a15 && (!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) || ((~bvsle32(a12, 4294967253bv32) && 8bv32 == a15) && ((9bv32 == a21 || 10bv32 == a21) || 8bv32 == a21)))) && !~bvslt32(11bv32, a12)) && 6bv32 == a21) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12))) - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: (((((((((((1bv32 == a24 && !(6bv32 == a15)) && !~bvsle32(a12, 4294967253bv32)) && !~bvslt32(80bv32, ~bvadd64(a12, 4294367312bv32))) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12))) || (1bv32 == a24 && 0bv32 == a12)) || ((((1bv32 == a24 && (!~bvslt32(11bv32, a12) || !~bvsge32(80bv32, a12))) && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && (!(8bv32 == a15) || !(1bv32 == a24)))) || ((1bv32 == a24 && 5bv32 == a15) && 6bv32 == a21)) || ((((1bv32 == a24 && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && 6bv32 == a21) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || ((((1bv32 == a24 && (!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) || ((~bvsle32(a12, 4294967253bv32) && 8bv32 == a15) && ((9bv32 == a21 || 10bv32 == a21) || 8bv32 == a21)))) && !~bvslt32(80bv32, a12)) && (!~bvslt32(11bv32, a12) || !~bvsge32(80bv32, a12))) && (!(8bv32 == a15) || !(1bv32 == a24)))) || ((((1bv32 == a24 && !~bvsle32(a12, 4294967253bv32)) && ~bvsle32(~bvmul32(~bvsdiv32(~bvadd64(a12, 4294438260bv32), 5bv32), 5bv32), 4294967253bv32)) && 8bv32 == a21) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12)))) || (1bv32 == a24 && a12 == 4294967247bv32)) || ((((5bv32 == a15 && (!~bvslt32(80bv32, ~bvadd64(a12, 4294367247bv32)) || ((~bvsle32(a12, 4294967253bv32) && 8bv32 == a15) && ((9bv32 == a21 || 10bv32 == a21) || 8bv32 == a21)))) && !~bvslt32(11bv32, a12)) && 6bv32 == a21) && (!~bvsge32(11bv32, a12) || !~bvslt32(4294967253bv32, a12))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 226.5s, OverallIterations: 13, TraceHistogramMax: 10, AutomataDifference: 141.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 7.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1122 SDtfs, 7902 SDslu, 395 SDs, 0 SdLazy, 26178 SolverSat, 2713 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 124.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 26233 GetRequests, 25979 SyntacticMatches, 78 SemanticMatches, 176 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1325 ImplicationChecksByTransitivity, 28.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5869occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 13 MinimizatonAttempts, 1886 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 103 NumberOfFragments, 479 HoareAnnotationTreeSize, 3 FomulaSimplifications, 6902 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 3 FomulaSimplificationsInter, 12524 FormulaSimplificationTreeSizeReductionInter, 6.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.6s SsaConstructionTime, 4.7s SatisfiabilityAnalysisTime, 73.9s InterpolantComputationTime, 14887 NumberOfCodeBlocks, 14887 NumberOfCodeBlocksAsserted, 23 NumberOfCheckSat, 26179 ConstructedInterpolants, 0 QuantifiedInterpolants, 178775864 SizeOfPredicates, 80 NumberOfNonLiveVariables, 16839 ConjunctsInSsa, 167 ConjunctsInUnsatCore, 38 InterpolantComputations, 10 PerfectInterpolantSequences, 52722/70011 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...